2053 Equations Reference Info   A runner completes a 55.213-km race in 3 h, 16 min, and 4 s (11,764 s). There is a 7% uncertainty in the distance and a 6% uncertainty in the time. What is the uncertainty in the elapsed time?

A 78-years-old was admitted to the emergency department complaining of shortness of breath for four days. The patient had a positive history of tobacco smoking, alcohol consumption, and medical comorbidities (hypertension and diabetes type 2). Chest x-ray revealed right multilobar infiltrates. The PaO2/FiO2 ratio was 245. The patient was febrile, and the SBP was 96mm Hg.  A rapid qualitative PCR for SARS CoV-2 was negative. The AGACNP suspects community-acquired pneumonia (CAP). Blood cultures, sputum Gram stain and culture, and continuous oxygenation assessment were ordered. To establish an accurate etiologic diagnosis the AGACNP should additionally consider:

The following two questions are related to the same clinical scenario (patient). The nurse practitioner is called to the emergency department to review the laboratory results of a morbidly obese 65-years-old patient with a history of hypertension admitted for lethargy, fatigue, and daytime somnolence. Basic chemistry and CBC were unremarkable except for a Hgb of 19 gm/dL.  The arterial blood gases (ABG) in room air resulted in pH: 7.33; PO2: 47; PCO2: 64; HCO3: 29 Based on these results, you determine the patient is exhibiting:

The following three questions are related to the same clinical scenario (patient). A 63-years-old known chronic hypertensive patient was admitted to the ICU with a hypertensive crisis and a refractory blood pressure of 215/110 mm Hg.  A sodium nitroprusside intravenous drip was started.  After 6 hours of continuous infusion at 5mcg/kg/min, the patient became confused, tachycardic, tachypneic, and oliguric.  The nurse noticed unusual skin flushing and summoned the AGACNP to the bedside. Upon assessment, the practitioner corroborates the nurse’s findings and immediately suspects:

A 32-years-old patient was admitted to an urgent care facility with tachypnea, complaining of light-headedness. The patient disclosed a positive history of anxiety with panic attacks. Arterial blood gas was obtained with the following results: pH: 7.44 | PaCO2: 28 | HCO3: 20. The AGACNP interprets these results as:

Which of the following would NOT be likely to result in the A-a gradient calculated for this patient? 

A 30-year-old patient was admitted to the emergency department complaining of shortness of breath, fatigue, and non-productive cough for the past 3 days. On admission the patient temperature was 38.6 degrees Celsius. Vital signs were remarkable for hypotension (100/72 mmHg), tachycardia (110 bpm), and a respiratory rate of 21. The pulse oximetry on room air revealed a SpO2 of 85%. The AGACNP assessing this patient is interested in knowing the possible etiology of the patient’s hypoxemia. An age adjusted A-a gradient will help in the process of evaluating the source.   The AGACNP performs the calculation and finds the following value for age expected A-a ratio:  

A 19-years-old patient was received in the emergency room with altered cognition, complaining of nausea, vomiting, and headache. The accompanying relative of the patient disclosed a significant history of the patient’s suicide attempts. Results suggestive of carbon monoxide poisoning will be:

The following three questions are related to the same clinical scenario (patient) A 29-year-old patient was admitted to the Trauma Resuscitation Unit after a motor vehicle crash (MVC). On arrival, the patient presented with a Glasgow Coma Scale (GCS) of 15, blood pressure (BP) of 126/82 mm Hg, a heart rate (HR) of 89 beats per minute, a respiratory rate (RR) of 19 breaths per minute, a temperature of 99.5°F, O2 Saturation at 96%, and a negative FAST. The patient complained of severe pain in the left lower extremity.  A large-bore catheter was placed in the antecubital, Lactated Ringer bolus was started, and the patient was taken to the radiology suite for x-rays. The x-rays of the left lower limb revealed a fracture of the femur and extravasation of fluid in the pelvic cavity.  The AGACNP identifies that this patient is most at risk of developing the following: 

Generally, reasonable liquidated damage clauses will be enforced: